This week journalists have been given a rare insight into the workings of the man who has transformed Liverpool over the last two years and turned them into Premier League title challengers again.

Of course pre-season is used to build fitness and that work has been done by Rodgers and his expert coaching staff, but now it is all about ball work.

Almost every session in the shadows of America’s most famous college, Harvard University, has been a lesson in ball retention and quick passing.

The sun may have been beating down all week, but the pace of the sessions never slowed as they trained with adoring fans watching from behind a wire fence.

One touch, two touch drills that kept everyone on their toes were frequent among passing sessions and six v six practice games.

Every detail is monitored by the teacher, Rodgers, who stands proud on the touchline writing down notes on a large white pad, gesturing to his players and offering advice.

TACTICIAN: Rodgers carefully and meticulously regiments each and every training session [GETTY]

“One touch, two touch drills that kept everyone on their toes were frequent among passing sessions and six v six practice games”

Everyone seems comfortable and everyone seems open to the tips, criticisms and encouragement not only from the manager but also from team-mates.

On Thursday, Rodgers spotted the group of press watching and came over to explain how hard his team work.

It was evident from the sweat alone, but watching it proved why this team time and time again blew away opponents last season, especially in the early stages of games as they worked tireless in heat well over 30 degrees.

Rodgers has brought his style wherever he went, and what he found at Liverpool two years ago was a hard-working team that was just not playing the way he would like.

Squad additions and sales have obviously played a huge role in changing their way of playing, but these fast-paced drills are where the changes also come from.

When the Northern Irishman visited this city with his squad two years ago just after taking over, he spoke about how players would have to commit to his way of working.

The sessions this week prove they have wholeheartedly and that is why it has worked so well for the manager and the club.

Rodgers also said back then that realistically it would be tough to have Liverpool back as title challengers within two years.

But not only has he managed that, he has also done it in a stylish fashion on the pitch and the glimpse we have had this week into his workings shows us exactly how it was possible.